Wheel and axle



Feb' 22 1927 H. w. SANFORD WHEEL AND XLE Filed Aug. 18. 1925 2 Sheets-Sheet 1 0*/ i/ 0 l S @7 w1 l C# E1 4 y M/x A/A E8 INVENTOR.

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l A TTORNEYS.

Y L 61s 84s Feb 22 1927 H. w. sANFoRp 1 WHEEL AND AXLE Filed Aug. 1'8. 1925 2 Sheets-Sheet 2 IN VENTOR.

BY @E A TTORNE YS.

Patented Feb. 2.2, 1927.

HUGE: w. SANFORD, E xNoxviLLE, '.1.E1`\11\1EssEE. i

WHEEL AND .AXLIEL Application led August 18, 19215. Serial No. 51,065.

'15 and axle and roller bearing and a part of a mine car body; y

Fig. 2 is a transverse uprightsection on the line, 2 2, of Fig. 1, looking toward the right; v Y

Fig. 3 is an upright axial sect-ion through a mold in which a wheel is cast;l

Fig. 4 is a horizontal section on the line,

4 4, of Fig. 3.

Referring to Figs. 1 and 2 of said drawings, A is the axle. A1 is one of the journ nals on the axle. A2 is a shoulder formed on the axle at the inner end of the journal. B is a wheel having a bearing or hub, B1. lVithin the hub is a tubular liner, B2, which bears Yagainst the inner face of the hub and may be regarded as a part of the hub. The hub has an end wall, B3, which bears against the end of the journal, A1. The journal and the inner face of the liner, B2, are spaced from each other a distance eCqualling the diameter of each yof the rollers, journal and fill the annular the journal and the liner.

, The end wall, B3, of the hub has an annular channel, B4,

concentric with the journal -axis and opposite the outer ends of the rollers, C. The;l

bodies yof said rollers .extend only to or nearly to the plane of the end of the journal; but each roller has on its adjacent end a wrist, C1, extending into the channel, B1. At the other end of the hub and on its innerl face is a ring, D,having a flange, D1, bearing against the inn-er face of the hub and having a flange, D2, extending between the journal and the wrists, C1, of the rollers, C. Rivets, D3, join the flange, D1, to the hub.

An axle box, E, is secured in any manner to the car bottom, F, and extends around These rollers are placed parallel lto theV space betweenA thel journal betweentheshoulder, A2, and the hub-,j B1, and bears against the journal. Said box is expanded to make a flange, E1,

extending outward around and spaced froml the hub, B1, of the wheel.

In the part of the hub which is surrounded bythe flange, -E1, the hub has an external, circumferential channel, B5. Above and below the-hub, a key, E1, extends horizontally throughV the iiange,v E1, and tangentially through the hub channel, B5, and is retained by a cotter, E. Said keys prevent the wheel and hub from moving horizontally loutward away from the bearing box, E. lVhile so serving, the keys bearl against the adjacent upright face, E3, of theannular' flange or rib, E5, of the hub which forms the inner wall of the channel, B5.

Between the end of the4 hub and the face of the box, E, a flat ring or washer, E2, extends around the journal.

The part of along the annular channel, B1, extends outward farther than does the part `of the end Wall which bears against the end of the journal, A1.Y Thus the outer face of the outer end of the hub is recessed or dished. Within the part of said end wall which bears against the journal is a port, G, extending through said wall. On the inner face of said from tlieport, G, to the channel, B1. A plug, G2, is screw threaded into the port, G. Said plug is preferably a tubular grease screw ofany desired form suitable for the insertion ofv lubricant into the hub. The purpose of the channel, G1, is to provide a passage for the grease from the port, G, to the channel, B1, and thence into the spaces between the rollers, C, and the journal, A1, and the liner, B2, of the hub and outward between the journal and the ring, D, and between the inner end of the hub and the washer, E2, and into the space between the outer face of the hub and the flange, E1, of the axle boxing, E, and into the channel, B3.

lt will be observed that at times, while the wheel is rotating, there is strong pressure by the keys, E3, against the adjacent upright face, E6, vof the annular flange or the end wall, B3, of thehub Y wall a channel, G1, extends rib, E5. Heretofore such pressure has caused s which forms one of the faces against which the molten metal rests when the mold isl lilled by pouring.

But While it is desirable to thus harden this flange, it is very desirable to avoid hardening the adjacent body of the hub to such extent as to make its inner face hard. In other' Words, the chilling is to be limited to the exterior of the hub. The reason for avoiding such-interior hardening is that after the hub has been cast, its interior must be accurately and smoothly bored, and that Work would be very diliicult (substantially impossible) Vif that portion of the inner face of the hub were made hard by chilling. Consequently l have made provision for chilling7 the flange, in such manner as to prevent the chilling from extending through the interior face of the hub.

rlhis method and operation are illustrated by Figs. 3 and el. Fig. 3 shoivs a section of the mold With a part of the hub still in position in the mold. rlfhe inner end, B, of the huh-B1, is made thicker than the part of the hub along the channel, B5. rllhe flange, fi, is on the thicker part, BG. Thus the distance from the outer or peripheral face, ET, of the flange, E5, to the interior face of the hub is made relatively large. Said peripheral face is slanting, the lower part being toward the inner end of the hub. A metal ring, H, rests on said peripheral face and has its lateral face, H1, approximately even with the face, EG, of the i'iange. Other `adjacent faces of the hub lie against sand packed vto form a part of the mold. 'Pouring metal into the mold thus formed will cause the chilling of a part of the flange, E5, by contact with the chilling ring, H. But the parts are to be so proportioned'as to substantially limit the chilling to the flange, E, none of the chilling extending inward through the hub Wall to the adj acont inner face of the hub, lt is, essential that the face, E, of the flange, F5, be chilled. Chilling the face, E7, of the flange is immaterial. That results incidentally because the ring, F, is placed outside the flange, E5, to attain distance from the interior face of the hub and also to make the ring removable When the hub is taken from the mold. Making l. rl`he combination of a journal, a hubY surrounding the journal and having near its inner end an external circumferential flange which is'chilled While the adjacent interior part of the hub is not chilled, an axle box surrounding said journal and the Vinner end of the hub and said annular flange and keys seated in the axle box tangentially to the hub and adjacent the face of said flange which is directed toward the outer end of the hub, substantially as described.

Q. rl`he combination of a journal, a hub surrounding the journal and having near its inner end an external circumferential flange having a sla-nting peripheral face and which flange is chilled While the adjacent interior part of the hub is not Chilled, an axle box surrounding said journal and the inner end of the hub and said annular flange, and keys seated in the axle box tangentially to the hub and adjacent the face of said flange which is directed toward the outer end of the hub, substantially as described.

3. rlhe combination of a journal, a hub surrounding the journal and having near its inner end an external circumferential iange Which is chilled While the adjacent interior part of the hub is not chilled, and retaining means engaging theface of said flange which is dir cted toward the outer end of the hub, substantially as described.

ln testimony whereof l have signed my name, this eleventh day of August, in the year one thousand nine hundred and twentyfive. i

HUGH lV. SANFGRD. 

